package com.seec.bok.util;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Builder;
import lombok.Data;
import lombok.Setter;
import org.springframework.boot.web.server.LocalServerPort;
import org.springframework.http.HttpMethod;
import org.springframework.web.client.HttpMessageConverterExtractor;
import org.springframework.web.client.RequestCallback;
import org.springframework.web.client.RestTemplate;

import javax.validation.constraints.NotNull;
import java.util.HashMap;
import java.util.Map;

public class Request {

    public static int PORT;
    private static ObjectMapper mapper = new ObjectMapper();
    @LocalServerPort
    public void setRandomServerPort(int randomServerPort) {
        PORT = randomServerPort;
    }

    private static RestTemplate RESTTEMPLATE  = new RestTemplate();;
    @NotNull
    HttpMethod requestMethod;
    @NotNull
    String url;
    @NotNull
    String path;
    @Setter
    Object request;
    Map<String,Object> urlVariables;

    Object resDemo;

    public String getRequestJson() throws JsonProcessingException {
        return mapper.writeValueAsString(request);
    }

    public String getResDemoJson() throws JsonProcessingException {
        return mapper.writeValueAsString(resDemo);
    }

    public Request(@NotNull HttpMethod requestMethod, @NotNull String path) {
        this.requestMethod = requestMethod;
        this.url = "http://localhost:" + PORT +path;
        this.path=path;
        urlVariables=new HashMap<>();
    }

    public Object put(String key, Object value) {
        return urlVariables.put(key, value);
    }

    public<T> T execute(Class<T> retType){
        RequestCallback requestCallback;
        if(request==null){
            requestCallback = RESTTEMPLATE.acceptHeaderRequestCallback(retType);
        }else {
            requestCallback = RESTTEMPLATE.httpEntityCallback(request, retType);
        }
        HttpMessageConverterExtractor<T> responseExtractor =
                new HttpMessageConverterExtractor<T>(retType, RESTTEMPLATE.getMessageConverters());
        T ret= RESTTEMPLATE.execute(url,requestMethod,requestCallback,responseExtractor,urlVariables);
        resDemo=ret;
        return ret;
    }


    public String OutToString(String methodMessage) throws JsonProcessingException {
        return "\n### Request \n" +methodMessage+
                "\n#### requestMethod \n" + requestMethod +
                "\n#### url \n" + url +
                "\n#### path \n" + path  +
                "\n#### urlVariables \n" + mapper.writeValueAsString(urlVariables) +
                "\n#### reqBodyDemo \n``` json\n" + mapper.writeValueAsString(request) +
                "\n```" +
                "\n#### resBodyDemo \n``` json\n" + mapper.writeValueAsString(resDemo)+
                "\n```";
    }
}